there are new allegations of nsa snooping on line. "the washington post" reports that the nsa tappers are secretly tapping into google and yahoo! data centers and snagging emails. nsa chief denies the claims. liz bet plan is live in washington. what private information nssa said to be gathering, elizabeth? >> reporter: we're dealing with companies in the past that have been subjected by court order to provide the information but here there is allegedly no permission. look at the to understand what they're supposedly collecting. see where the information flows between our electronics and those enormous data centers. the information can be shared to one data cloud to perhaps another data hub. that is example of the point where and how the nsa allegedly breaks into those up ternnal networks. they're collecting metadata. we know this. information which would indicate who sent or received emails, when that occurred and content meaning it a text, a audio file or could be a video file. bill: what are the companies saying about that? reaction